Self-propelled sadiron



A. M. HOLTZMAN.-

SELF PROPELLED SADIRON.

APPLICATION FILED NOV.2 2. 1915.

1,331,107. Patented Feb. 17,1920.

menu mm mm mm new Bane 'in 50 Z} I:

I IIIllIIlI/Illllllll t I/WEN TOR ABRAHAM MAX HOLT ZMAN, OF BROOKLYN, NEW YORK.

sELF-PEOPELLED SADIRON.

Specification of Letters Patent.

Patented Feb. 17, 1920.

Application filed November 22, 1918. Serial No. 263,682.

To all whom it may concern: 1

Be it known that I, ABRAHAMMAX HOLTZ- MAN, a citizen of the United States, and resident of the borough of Brooklyn, county of Kings, city and State of New York, have invented certain new and useful Improvements in Self-Propelled Sadirons, of which the following is a specification.

The device, the subject of this invention is a sad iron intended for all of the uses of the common type of sad iron for pressing, straightening and finishing. I have however, discovered that in certain classes of work, particularly in the pressing-of very heavy outer garments the ordinary sad iron does not meet the requirements because of the fact that the weight of an iron is limited by the strength of the operator, and that because of the difficulty in moving the iron about many Operators must employ.

light irons to which must be added the strength of the operator in depressing the iron upon the goods over which the iron is to be passed.

One of the principal objects of my invention then is to provide an iron which can be made of very great weight, one which will however, operate as readily or even more readily than the ordinary hand propellec iron.

I provide means for movingthe iron in any direction, means for heating the iron continuously while under use and means for removin the iron from the work without' the necessity of manually lifting the iron in the customary manner. All of these features and the construction of my device will be set forth as the specification progresses.- The following is what I consider a good means for carrying out my invention and the accompanying drawings should be referred to for a completeunderstanding of the specification which follows:

In the drawings 2- Figure 1 shows in elevation an ironing table upon which are arranged my improved iron and the support or retriever therefor.

Fig. 2 is a sectional view of the iron. Fig. 3 shows in elevation the current controlling device. Q Fig. 4 shows a detachable presser foot.

Similar reference numerals indicate like parts in all the figures where they appear.

At 1 I show a table or stand upon which my iron may operate. This table may be of any ordinary shape or size and therefor requires no further description.

Secured at one end of the table is a cylinder 2 having an upward projection 3 and.

through the cylinder Iextend a shaft 4 pro-' vided with t. collar 5 and a spring 6 tends to depress the shaft 4.

Pivoted to the upper end of the shaft 4 is a lever or arm 7 the extreme outward end of which is slightly upturned as indicated at 8. This lever 7 bears upon a projection 3 of the member 2 and when the spring .6 depresses the collar 5 the outer end 8 of the lever 7 is elevated.

The device just described is the support or retriever for my iron and when engaged with the iron this retriever will elevate the iron from the table. and support it elevated.

The iron proper is provided with a pressing cylinder 9 which may be of any diameter, weight and size. This cylinder'is electrically heated as will be latgr described and the cylinder is supported upon a-shaft 10 which shaft is free to rotate in suitable bearings inthe frame 11 of the iron. Upon the shaft 10 I arrange a sprocket 12.

A motor 13 supported in the frame 9 carries a sprocket 14 and a chain 15 from the sprocket 14 I on the motor shaft to the sprocket 12 on the shaft 10 rotates the shaft and the cylindrical member 9.

Formed integral with the frame 11 is an extension 16 at the lower end ofwhich is a presser foot 17 and this presser17 is also electrically heated as will be more fully hereinafter described.

Connected with the top of the frame 11 of current carrying wires may be attached and I may also provide a small fan 26 inclosed by a suitable guard. This fan is connected upon the motor shaft and performs the ordinary functions of a fan in cooling the atmosphere adjacent to the iron, the use of the fan may however, be dispensed with.

Now referring to Fig. 2 I will describe the construction of certain of the parts.

The cylinder 9 may be of iron or steel, one or both of the ends may be removable as desired, within the cylinder I arrange a plurality of'heating coils 28, 29 and I connect these coils one end of each coil extending through the end of the cylinder 'to a button 30 or 31 and the-other end extending through the opposite end of the cylinder to the buttons 32 and 33 and it will be understood that I may provide any number of coils within the cylinder and corresponding buttons upon the ends of the-cylinder but insulated therefrom.

The end members of the cylinder should be recessed and a shaft 10 passing through the cylinder should be secured thereto by means of nuts 34 and 35 so that the cylinder will rotate with the rotation of the shaft 10.

Disks 36 and 37 are arranged one at each end of the, cylinder and bearv upon the contacts 3033. These disks 36 are insulated from the shaft and from all surrounding mechanism by flanged sleeves 38 and 39 and a spring washer 40 or 41 presses the disks 36 or 37 inward upon adjacent contacts and an insulating pin 42 or 43 passing through the disks 36 or 37 and the springs 40 and 41 prevents the rotation of the disks and springs.

A wire from the line lead or source is connected to the disk 36 and another wire from the source of current supply is connected to the disk 37 and whenso connected and currentis allowed to flow through the wires the coils within the cylinder will become heated, heating the cylinder to a desirable degree.

' I also provide heating coils 43 in the foot or drag member 17 but as these coils are stationary with the frame of the iron ordinary permanent connections may be employed to pass current through these coils.

The switch shown in Fig. 3 is in diagram and serves to show the connections of the wires and line leads to the motor as I prefer 11, the cylinder 9, and the foot piece or versed.

drag 17 should be heavy. In my experi* ments I have determined that the total weight of this iron may be greater than any weight found possible with a hand-propelled iron, although the weight need not be con sidered an important feature in the construction of the iron, provided that it be sufficient to meet requirements.

While the iron is upon the supporting lever 7, the current may be caused to pass into and through the heater coils and when the cylinder 9 and foot piece or drag 17 are sufficiently heated the iron may be disengaged from the lever 7, the handle 20 of the iron turned slightly so that the switch lever 22 will contact with the first point P of the controlling switch shown in Fig. 3. The motor will start to revolve slowly, the cylinder 9 will also revolve and the iron will move forward or in the direction of the arrow in Fig. 1. The speed may be increased by a thorough turning of the handle 20, but I desire a comparatively slow motor so that the rate of travel of the cylinder will not be so great as to move the iron materially faster than an ordinary pressing iron is moved. When the end of the seam or garment is reached the iron may be turned around or if desired its direction of motion may be rethe handle 20 in the opposite direction, this will cause the lever 22 to pass through the center of its travel and over or across the other contacts C of the switch. Here the will stop and the iron come to rest.

If required an ordinary jack shaft may be employed for reducing the speed of travel but as the use of a jack shaft is well understood I need not show the arrangement of such a shaft and I prefer that my device should be direct connected.

Modifications -may be made within the scope of the appended claims without departing from the principle or sacrificing the advantages of this invention.

The presser foot may be made detachable if such is desired.

Having carefully and fully described my invention what I claim and desire to secure by Letters Patent is 1. A self-propelled sad iron having a cylinder and means for rotating it and a nonrotatable drag and means for heating said cylinder and said drag.

2. A self-propelled sad iron having a frame, a cylinder rotatably mounted in said frame, means carried by said frame for ro- A- reversed or backward movement .of the iron may be accomplished by turning tating said cylinder and a non-rotatable drag upon said frame and means for heating said cylinder and said drag.

3. A self-propelled sad iron having a rotatable cylinder and a non-rotatable drag and means for heating said cylinder and said drag and a handle for directing said iron.

4. A self-propelled sad iron having a cylinder and means for heating it, means for rotating said cylinder, means for controlling the speed of rotation ofsaid cylinder and a non-rotatable drag.

5. A self-propelled sad iron having a cylinder, means for heating said cylinder, means for rotating said cylinder, means for controlling the rotation of said cylinder and for changln the direction of rotation and a non-rotata le drag. a

6. self-propelled sad iron having a frame and a shaft extending therethrough, a cylinder upon said shaft, heating coils Within said cylinder, means supported by said frame for electrically'connecting said coils with a source of current supply, a motor Within said frame and connected with said shaft for rotating said cylinder and a non-rotatable drag on the frame.

Signed N. Y. city, Oct. 4, 1918.

ABRAHAM MAX HOLTZMAN 1 

